The answer will be C.) 70 square feet
Answer:
x=3/5
Step-by-step explanation:
-3(4x-7)=15-2x
-12x+21=15-2x
-12x+2x=15-21
-10x=-6
x=3/5
Answer: $1125
Step-by-step explanation: 7500 x 3%= 225 Then multiply 225 by the 5 years. You will then get 1125. Marsha earned $1,125 in interest.
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It's 28 5/7. 10 +18 and 2/7 + 3/7
Answer:
<em>The capacity of the cistern is</em>
<em>The volume of iron used is</em>
Step-by-step explanation:
<u>Volume</u>
The volume of a rectangular box of dimensions x,y,z is given by:
V = x.y.z
The external dimensions of the rectangular cistern are 1.35 m, 1.08 m, and 0.90 m, thus the external volume is:
The cistern is made of iron 2.5 cm= 0.025 thick, thus the internal dimensions are:
1.35 - 0.025 = 1.325 m
1.08 - 0.025 = 1.055 m
0.90 - 0.025 = 0.875 m
The internal volume is:
The capacity of the cistern is 1.2231~m^3
The volume of iron used is the difference between the external and the internal volumes:
The volume of iron used is